Item 1 of 3
Item 1 of 3
expiredbnrusso posted Nov 18, 2025 9:00 PM
EcoFlow Lithium 12V 100Ah Deep Cycle LiFePO4 Battery
$109
$309
64% off
+ Free Shippingat eBay
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+ Free Shippingat eBayDeal Details
EcoFlow Official Store via eBay has EcoFlow Lithium 12V 100Ah Deep Cycle LiFePO4 Battery for $109. Shipping is free.
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
- Best lithium battery for RVs, cabins, and off grid workshops
- Group 27 equivalent
- 1280Wh capacity, 1280W continuous output
- Best-in-class EV-grade LFP cells with 6000+ cycles
- UL, CE, FCC, UN38.3, RoHS certified
- 50% less weight, 50% more energy than lead acid
- IP65 waterproof rating
- X-Guard BMS with low-temp cut-off
- Highest-level UL5VA flame-retardant casing
Editor's Notes
Written by SubZero5 | Staff- About this deal:
- Our research indicates that this deal is $130 less (54% savings) than the next best available price from a reputable merchant with prices starting from $239 at the time of this posting.
- About this product:
- 5-year warranty
- About this store:
- 30 days returns. Seller pays for return shipping.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
EcoFlow Official Store via eBay has EcoFlow Lithium 12V 100Ah Deep Cycle LiFePO4 Battery for $109. Shipping is free.
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
Thanks to Community Member bnrusso for finding this deal.
Note: Select accounts may qualify for a coupon code found on the product page (discount may vary).
Features:
- Best lithium battery for RVs, cabins, and off grid workshops
- Group 27 equivalent
- 1280Wh capacity, 1280W continuous output
- Best-in-class EV-grade LFP cells with 6000+ cycles
- UL, CE, FCC, UN38.3, RoHS certified
- 50% less weight, 50% more energy than lead acid
- IP65 waterproof rating
- X-Guard BMS with low-temp cut-off
- Highest-level UL5VA flame-retardant casing
Editor's Notes
Written by SubZero5 | Staff- About this deal:
- Our research indicates that this deal is $130 less (54% savings) than the next best available price from a reputable merchant with prices starting from $239 at the time of this posting.
- About this product:
- 5-year warranty
- About this store:
- 30 days returns. Seller pays for return shipping.
Community Voting
Deal
Score
+39
Good Deal
Bad Deal
Top Comments
2 batteries×6V×200Ah=2,400Wh (Lead Acid)
2 batteriesx12Vx100Ah=2,400Wh (Lithium)
And that's just the start. In terms of usable capacity these two setups are wildly different. First some important things to consider:
FLA: You should not discharge lead-acid batteries below 50% Depth of Discharge (DoD) to ensure a decent lifespan.
LFP: Lithium batteries can be safely discharged to 100% (though commonly rated at 80%–95% for longevity, many BMS allow full usage).
If you do the math and then consider just the two points above the LFP setup has roughly 4x the usable power. Unfortunately @firelikeiya enjoys a good fictional rant here!
But let's keep going. Another two important points to consider: 1) Voltage Sag and 2) Weight. I'm sure you've guessed by now but: the FLA batteries are garbage in comparison here, as well. First is Peukert's law - those FLAs can't draw a high amount of current. Your "200Ah" worth of power will easily drop to 100AH or less under an actual load. As for weight, well... Again there's no comparison here. If the two LFP batteries in this SlickDeal aren't at least 40% lighter then you bought some garbage batteries!
And as Mr. Jobs always said: one more thing... Extreme heat and cold. They both have tradeoffs. The LFP: you're not going to be able to charge below freezing. But the FLA will also lose significant (up to 50%) capacity AND charge slower. As for heat - lead-acid batteries degrade rapidly in heat. A general rule of thumb is that for every 15°F above 77°F (25°C), the battery's lifespan is cut in half and so I'm actually really confused about bro's claim of pressure cooked batteries (made up) vs batteries that literally die in the sun. And this is how we know that our golf-cart-battery-buddy clearly knows ZERO about batteries. Is there a downside to LFP in the heat? For sure, it will be that your BMS may cut the battery at 130-140F+. So, yeah that could be an issue in extreme temps, but don't listen to anything this guy is saying.
And for the love... Why do people keep asking if they can use these batteries in their car? JUST. DON'T.
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